BBS: TELESC.NET.BR Assunto: Re: Conveyer belt question De: Rug Rat Data: Thu, 26 Feb 2026 05:46:19 +0000 ----------------------------------------------------------- Don't fall for the familiarization bias trap.. You are mentally comparing an aircraft with a car or bicycle when you are assuming the belt and wheels will cancel each other out and stay in a fixed location. This is try in land based modes of transportation because a car is propelled "thrust" by energy produced by the engine begeing transfered to the wheels, wheels spin, and friction between the wheels creating a force in the opposite direction of travel. So force applied to treadmill in same direction and speed of treadmill cancel each other out, so there is no force (Or thrust). Now. Switch to the aircraft. An aircraft, wheather propeller or jet, eneregry is created by the engines and transfered to the air around it, (We will use jet because it is easier to imagine the force). Jet sucks in air, blowing it out the back. Pushing on the outside air, in the opposite direction of travel. The wheels have NOTHING (Except for a minor friction value (and wheel bearing friction / heat) to do with it's motive force. NOTHING, they free spin. You apply throttle, the jet pushes on the air around the aircraft, propelling it forward. Wheels free spin, they have no part of the equation. Aircraft moves forward, creating apparent wind over the wings, creating lift. Aircraft takes off. Human factors at its best.... Rug Rat (Brent Hendricks) Blog and Forums - www.catracing.org IMAGE BBS! 3.0 - bbs.catracing.org 6400 C-Net Amiga BBS - bbs.catracing.org 6840 --- CNet/5 * Origin: The Rat's Den BBS (1:135/250) ----------------------------------------------------------- [Voltar]